.NET currency formatter: can I specify the use of banker's rounding?

Question

Does anyone know how I can get a format string to use bankers rounding? I have been using "{0:c}" but that doesn't round the same way that bankers rounding does. The Math.Round() method does bankers rounding. I just need to be able to duplicate how it rounds using a format string.

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Note: the original question was rather misleading, and answers mentioning regex derive from that.

Answer 1

Can't you simply call Math.Round() on the string input to get the behavior you want?

Instead of:

string s = string.Format("{0:c}", 12345.6789);

Do:

string s = string.Format("{0:c}", Math.Round(12345.6789));